Bartels, R. H., Beatty, J. C., Barsky, B. A., Bezier, P., Forrest, A., Barsky, B. A., & Forrest, A. R. (1987). An introduction to splines for use in computer graphics and geometric modeling. Los Altos, Calif.: Morgan Kaufmann.

Bartels, Richard H., John C. Beatty, Brian A. Barsky, Pierre Bezier, A.Robin Forrest, Brian A. Barsky, and A. Robin Forrest. An Introduction to Splines for Use in Computer Graphics and Geometric Modeling. Los Altos, Calif.: Morgan Kaufmann, 1987.

Bartels, Richard H., et al. An Introduction to Splines for Use in Computer Graphics and Geometric Modeling. Los Altos, Calif.: Morgan Kaufmann, 1987.